Pawn shops are one of the oldest business models in civilized society; you bring an item to the shop, they offer you a loan for the item, and you pay back the loan and interest within an agreed-upon time period or the shop keeps your item. Online service Pawngo will buy or pawn your jewelery, high-end cameras, and… »8/20/11 1:00pm 8/20/11 1:00pm